Q. Can psoriasis cause dark discoloration of the penis?

Answered by
Dr. Alexander Davis
and medically reviewed by Dr. Lochana
This is a premium question & answer published on Nov 02, 2020 and last reviewed on: Jun 25, 2021

Hi doctor,

I have some dark discoloration on my penis. I showed it to my family doctor and he did some blood tests. He told me that there is nothing to be worried about it. But this concerns me a lot. I read a lot about penile cancers and figured discoloration as one of the early symptoms. I also came to know about other benign conditions like penile melanosis. Do I need to be worried? Do I need to consult a specialist? Do I require to do a biopsy? Is this a serious condition? I was diagnosed with psoriasis at the age of 32 and now I am 35 years old. Could this be an effect of psoriasis? Kindly advise.



Welcome to

I have gone through the attached image (attachment removed to protect patient identity). It seems to be benign penile melanosis. You need to know that there are some color changes observed in the coloration of penile melanosis. Your condition looks fine and you can be happy. If you see any colored or discolored lesion anywhere on your skin, then it indicates a dangerous lesion. They look different and do not fit the normal pattern of other moles. Your psoriasis is not the likely reason for penile melanosis. When the color of the skin looks darker, then there are more chances for you to have melanosis somewhere on your skin. Even bilateral ethnic melanosis of eyes is common and you have a normal penis.

The Probable causes:

You have penile melanosis.

Investigations to be done:

You do not require any investigations.

Probable diagnosis:

You have penile melanosis of classic Asian type. Macroscopically, there is no other abnormality seen.

Treatment plan:

You require a self-observation.

Preventive measures:

You require a self-observation.

Regarding follow up:

Have a follow-up at any time.

Was this answer helpful?


Same symptoms doesn’t mean you have the same problem. Consult a doctor now!

Related Questions:
General Management of Difficult Psoriasis

.. about the general management of difficult psoriasis and the prevention of its exacerbation .. ...   Read full

Small patch of psoriasis in ankle has flareups with joint pain and stiffness. Is this psoriatic arthritis?

.. include swelling of joint as well as morning stiffness and it looks associated with psoriatic arthritis. I would rather say it is seronegative rheumatoid arthritis associated with psoriasis also known as mixed connective tissue disorder (MCTD). N...   Read full

What could be the reason for foreskin swelling after erection?

.. on the picture you have mild short frenulum. It usually not possible to retract prepuce in the erect state, so it is normal slight discoloration around meatus is normal. You can continue the use of ointment. Avoid pulling the skin too much back in...   Read full

Also Read Answers From:

ideaComprehensive Medical Second Opinion.Submit your Case

Also Read

Coronavirus Variant Arcturus: | Omicron XBB.1.16 Variant
Arcturus is an emerging variant of the Omicron virus that causes various symptoms and spreads rapidly across the world. ...  Read more»
Adrenaline Rush - Symptoms, Causes, Effects, and How to Control
Adrenaline is a hormone responsible for fight or flight response. It is also a neurotransmitter and medicine. It is also...  Read more»
Fatty Liver - Types, Symptoms, Stages, and Treatment
The liver is the largest gland in the body. Its primary function is to process the food and drinks we consume. and filte...  Read more»

Ask your health query to a doctor online?

Ask an Internal Medicine Physician Now

* guaranteed answer within 4 hours.

Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.